Apparatus for removing burs.



W. McKEE.

APPARATUS FOR REMOVING BURS.

APPLICATION FILED D50. 6. ma

1,135,705., Patented Apr. 13, 1915 2 SHEETSSHEET 1.

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THE NORRIS PETERS C0,, PH TU-LITHQ, wAsHINGm".

W. McKEE.

APPARATUS FOR REMOVING BURS.

APPLICATION FILED DEC. 6, I913.

Patented Apr. 13, 1915.

2 SHEETSSHEET 2.

I HE NORRIS PETERS CD., PHOTC-LITHl, WASHINGTON. D. 4:

WW t r s P r wrL Is iiicxnn, ornrii nin, oirfo, Assieiion 'ro THE VELYBIA man & srnni. COMPANY,

. or ELYRIA, OHIO, A oonronarron or onro."

APPARATUS FOR REMOVING BURS.

To all whom it may concern:

Beit' known that I, WILLIS McKnn, a citizen of the-United States, residing at Elyria, in the county of Lorain and State of Ohio, have invented a certain new and useful Improvement in Apparatus for Remov outside and inside edges of the severed ends; These burs .are hardened by the heat of the sawing operation and the air cooling, sothat.

it is very difficult to removethem by cutting;

The difficulty of removal is particularlygreat in the case of the burs on the inside edge, and the present inventionis for a mechanism which will quickly and satisfactorily remove such inside burs.

An object of this invention is to provide such an apparatus which shall be simple 1n construction, efficient and rapid in operaend.

, Another-object is to so construct such a device that several of them may be mounted on a commonsupport and drivenfrom a single shaft. 1

Still another object isto so 1 arrange these devices as to provide for various lengths of tubes being readily held While being operated upon, While allowing quick removal from the machine.

The invention is hereinafter more fully described in connection with the drawings," other objects will become apparent in the specification and the essential characteristics are set forth in the claims.

Figure 1 is a front elevation of two ofthe. devices for removing burs, mounted on suitable common support and driven from a common shaft; Flg. 2 1s a sectional slde elevation of the same; Fig. 3 is a detail of; the tool for removing the bur and a device for holding the end of the tube; Fig. 4: is a sectional detailof the same taken on a plane at right angles to the plane of Fig.) 3; Fig.

I 5 is ahorizontal sectional detail showing the tool and a tube, taken on the line 5-5 of Fig. 4:. v

Specification of Letters Patent Patented Apr. 13, 1915.

App1icationfi1ed Beams 6, 1913. Serial No. 804,985.

indicates the main shaft which is mounted in suitable bearings at 11 and 12, carried by upright support members 14:, which are bent forwardly at thier lower ends forming feet 15, by which they. may be secured to the floor. At their upper ends these supports are-bent forwardly and then upwardly at 16 and secured to a transverse channel member 17 which has its flat side facing the front and its flanges extending rearwardly. Just beneath this channel member 17 is a transverse member 19-parallel therewith and secured at each end to the supports 14; The foregoing comprises the "frame support for my bur removing mechanism. p t i Rigidly mounted on the shaft 10, are eccentric diskportions 20 revoluble in eccentrio straps 21, the upper part of'each of whichis'made' rigid with an eccentric arm 22 pivotally secured at its upper end to a rock lever 24:. The rock levei 2t is intermediately pivoted between ears 25 made rigid witha head 26 which has laterally extending flanges 28 whichthe head is secured with bolts to the channel member 17,and which has a rearwardly extending flange 29 overhang- .ingand; engaging the upper edge of this channel member. The head 26 projects for wardly from the flange 28 and is provided in its front face with a rectangular trough 30.

This trough is open at its lower end and 7 front side, and is closed by a web 32 at its upper end. Fitted into this trough is a guide block 34 having a rectangular exteriorandheld in'place at the upper end of the trough by set screws 35. The interior of theblock is cylindrically bored to fit loosely over the end of a tube, andtheupper portion of the block extends entirely around the tube 36 as shownat 37. Below this portion. 37 the block is cut away on the front .side' as indicated by broken lines at 38, to allow the end of the tube being readily inserted. When the end of the tube isiin the block its upward movement is limited by an end member 40 rigid with the block and provided with a notch'partially surrounding a plunger 42. v

The plunger 42 is, carried by a head 43 pivoted to the forward end of the rock lever 24:. lower end normally within the block 34, and is provided at its lower end with a trans- It extends downwardly, having its pin v passing through the lower end of the toolftoythe plunger. This tongue-is jpros -vilded with a lugg50 :adapted to engage the upper. endiof'fthejslotto limit therrout-ward movement'of thefplunger to prevent" it en- ;ga ging' the portion 37-rof the guide block.

:7 tongue 45 to limit the 'outward movement of the total; lidonot wishtobe-lim'ited to this construction, as any suitable meansmi aght be j -r used although as showngathe: tool tends to i I I ffv'v'ardly.

.'l;h6f Wer 1 wh'ilethebur s being removed, by'a 'block i 52which is provided with? a, slot 53: on its 7 tubes, and a f bottom [slants-if down wardlytowardi'ithe front to provide addi ".tnbesi ,This block is carried on a tablef54 having,an upwardlyY extending leg 5 6i L adapted'to be securedbybolts 57;? to; an uperse slots intolwhichiis fittedajtongue t5 f .formed on v a cutting toolit6." T his tool has artiallycylindricalexterior and has at; er-jencl"an arcual-shaped active edge" he interior surface is made paruauyyl r l -i apt d:t st t y,z t the outerlsurfajce of the; plunger Although Ihave shown a projection on the Z upper side, :This slot fhasf flarin g sides" adapt'ed to engage 3 various diametersz 01",;

' pl unger;a'nd tongue 4L5,"pivotally secures the i g g V 7 tool to enter the end of the 7 stroke, and on the up stroke the toolpresses a levers I 24; and, causing "the iplunger's -v 42 to been previously removed) is inserted into the guide-block '34: and its lower end is. guided by the grooveinthe block 52. The tool being pivoted on the plungerv readily moves inwardly, allowing :the plunger and tube on the down outwardly againstfthe inner surfaceof the tube." The arcual edge rides freely overthe comparativelyysmooth parts of the inner" V block, yvhich 1n turn engages the web 32 of ffallfjfoutwardly by gravity, any suitable means: may be used to press fthe tool outtionall adjus'tmentl for' varying lengths ofandhaving its upper end securedbya suite able bolt to the transverse bar 19.This sup- .7 -po'rtF is provided withi a series of holes evenly spaced apart, through which-thebolts 57-are'adaptd to passallowingthefvertidalj I adjustment of the table .54; j "Thus-it''will'r be {seen that the block 52 may be raised or"l0W-, we

, "ered to {obtain fapp'roz timate adjustment for V various lengths for tubes, an'd may be slid iba cl'rwar dand forwardio n the-table 54L until *ftheibottom of thefslot 53 engages the lower steady while the bur is being removed.

W a CI OSSfthe interior of thg-tube so fll th When th e'block isfoncesetfin position, any numberfof "tubes of the, same size -ma'y be.

space i for the entrjance of the tool and its fholder fis iChOkQ ClJ aIid considerable force must be exerted toefifect suchentrance. I The ferted horizontally on the lower end, of the tube; to jam' thegupper; end upwardly across 7 surface of theend f of the tube, but-engages and breaks oil a. portion of the bur 6 5,'the,

upward movement" of the tube being prevented by the nd'member40 of the guide the head 26: E' lh e operator holding ithe' tube during this operation, rotates it slightly by v v; e hand for a portion of a;rotation,br1nging a endofthe'tubeBG maybe held fresh part of the bu'riinto' the path of the tool, to be trimmed ofi on the: next uprstroke endofthetube' 'fAs willbe seen'from Figi-l, I says-sway arrange several of'these {mechanisms to be operated one's'haft-lO and vmount them on the, same transverse members 17 and: l9,' it being only necessary to extend these membersand the shaft, as' indicated at th'eleft of this vfigure. By thisarrangementfl' provide a mechanism on which'severaloperators may work at-onetime; with the greatest economy of power and floor space, as well bear againstthe inner surface of-the'tube, an

a end'of thetube, thfiidesof the slot'provid- 1 mg arest byr iwhich the-tube 'mayybef held abutment against 'Whichanerid of the-tube may bear when the plunger and tool are" within the tube, and an abutment against which the opposite end bathe tube; may

simultaneouslybean 7 "2. In an a'pparatus' of" the character described, the combination of a, tool, a Vrec'ip'rol {catingmember pivotally carrying the tool,

rojec't fa r enough v fiand'aguide for the end of a pipe like-tube adjacent the toolnne'ans' for moving saidtool w as providing simple; and cheap construction into en ow: of the end of thetubef, said 'tool being adapted to *press outwardly against the inner-Surface offthe tube, whereby an "inwardlyturned bur at the end-of thefin'side surface' may be'brokenofl by the-tool'.-

3;; Thecombinationofja means'forhold,

n tp' auon, pawri is supplied to suit-" f able pulley 64011 the shaftlO, to rotate'the;

'- shaft; and "the ec ii tri s,;-=osc111aang the;

ing apipe lilie tube in a removable manner,

, a plunger, means for reciprocating the plunger w thin the end of the tube, a toolpivoted a to the plunger'andextending alongside of it from the plunger.

whereby it may engage inwardly turned burs at the end of thetube, and means for limiting themovement of the tool away 4..Thecomb1nat1on of a guide for the end of a round pipe-like tube, a plunger adapted to enter the end of the tube, and'a tool having a partially cylindrical outside surface of substantially the same radius as the inner surface of the tube, the inside surface of the tool being adapted to substantially'fit around a the plunger, said tool being pivoted to-the end of the. plunger and adapted to swing outwardly, and means for reciprocating the plunger.

5. The combination of a reciprocating tool adapted to enter the end portion of a pipelike tube and engage an inwardly turned bur at the end thereof, a guide adjacent the tool for loosely embracing the outside of the tube near that end, allowing the tube to beturned while in the guide, and an abutment adapted to extend over and engage that end of the tube.

6. The combination of a guide looselyfitting the exterior of one end of a round pipelike tube, a stop adapted to abut the end of the tube to prevent end movement thereof, a plunger adapted to enter the end of the tube, a tool having an arcual edge pivoted to the plunger, means for reciprocating theplunger and tool, and means forrsteadying the other end of the tube.

7 The combination of a guide loosely fitting the exterior ofthe end of a roundpipelike tube, a plunger adapted to enter the end a of the tube, a tool pivoted to the plunger and having an arcual edge, meansfor reciprocating the plunger and tool, and a stop adapted to abut the end of the tube to prevent end movement thereof.

8. The combination of a tool, means for reciprocating thetool, a guide adjacent the end of the tool adapted to fit over the exterior of one end of a pipe-like tube, and so positioned that the tool may enter the end of the tube, and an adjustable block having a' recessed seat in which the other end of the tube may rest.

1 the tube, a block having a slanting surface adapted to engage the other end of the tube, and an adjustable support on which said block is mounted.

1,1. The combination of a cylindrical guide for one end of a pipe-like tube, aistop abut-x (tube.

12. The combination, with means for hold ing a round pipe-like tube, of a tool having an arcual edge adapted to enter the end of the tube, a lever pivotally carrying thetool,

a shaft, and connections between said shaft and said lever for oscillating the lever to re ciprocate the tool.

13. In an apparatus ofv the character described, the combination of a tool, means for i reciprocating the tool, means for holding a tube extending over the tool in position to enable the tool to trim ofi inwardly turned burs on the end of the tube, and means having a cam surface for engaging the end of the tube for forcing the tube longitudinally over the tool.

14:. In an apparatus of the character described, the combination of a tool, means for reciprocating the tool, means for holding a pipe-like tube at the upper end extending over the tool in position to enable the tool to trim 05 by breaking inwardly-turned burs on the end of the tube, and a support for the lower end of the .tube having a wedgeshaped groove with a slanting bottom where by the tube may be forced longitudinally over the tool as the lower end is pressed inwardly to a' position substantially in longitudinal alinement with the tool.

15. The combination of a reciprocating plunger, a tool carried thereby and projecting on one side of the plunger, an abutment on the opposite side of the plunger from the tool and adapted to extend over and engage plunger, a tool carried thereby and project-- ing at one side, an abutment adapted to extend across the end of a tube surrounding the plunger and tool, said abutment being extended to form a guide for the plunger on the opposite side from the tool.

17 The combination of a plunger, mechanism connected thereto for reciprocating the plunger, a tool pivoted to the plunger and adapted to lie alongside thereof extending from its pivot in a general direction toward 

